Nd:KGW Crystals
Nd:KGW crystals are low lasing threshold highly efficient laser material exceptionally suitable for laser rangefinding applications. The efficiency of Nd:KGW lasers is 3–5 times higher than that of Nd:YAG lasers.… Read more →
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| SKU | Coating · Dimensions · Description | |
|---|---|---|
| NdKGW-0324-01 | AR/AR@1050-1570 nm·Ø3x50 mm·Nd:KGW crystal, 3 % doping, b-cut |
Out of stock
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| NdKGW-0324-02 | AR/AR@1350 nm·Ø3x50 mm·Nd:KGW crystal, 3 % doping, b-cut |
Out of stock
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| NdKGW-0324-03 | S1: AR@1067 nm, S2: AR@808 nm + HR@1067 nm·Ø9x7 mm·Nd:KGW crystal, 3 % doping, b-cut |
Out of stock
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| NdKGW-0324-04 | AR/AR@1067 nm·Ø5x70 mm·Nd:KGW crystal, undoped, b-cut |
Out of stock
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Specifications
Physical and Laser Properties
| Chemical formula | KGd(WO4):Nd |
| Lattice constants | a = 8.095 Å, b = 10 Å, c = 7.588 Å |
| Optical orientation | ng = b, npc = 20 deg |
| Angle between optical axis | 86.5 angular grad |
| Density | 7.27 g/cm3 |
| Mohs hardness | 5 |
| Thermal conductivity | 2.8 W/(m×grad) [100] 2.2 W/(m×grad) [010] 3.5 W/(m×grad) [001] |
| Thermal expansion | 4×10-6 grad-1 [100] 3.6×10-6 grad-1 [010] 8.5×10-6 grad-1 [001] |
| Phase transition | 1005°C |
| Melting point | 1075°C |
| Transmission range | 0.35-5.5 µm |
| Refractive indice | ng = 2.033 @ 1.067 µm np = 1.937 @ 1.067 µm nm = 1.986 @ 1.067 µm |
| Transition | 4F3/2 -> 4I11/2 |
| Laser wavelength | 1.0672 µm |
| Fluorescence lifetime | 120 µs |
| Fluorescence width | 24 cm-1 |
| Emission cross-section | 4.3×10-19 cm-2 |
| Emission cross-section | 8.5×10-4 nm, K-1 |
STANDARD SPECIFICATIONS
| Orientation | [010] ±30 min |
| Dopant concentration | 2-10 at % |
| Diameter tolerance | +0.0/-0.1 mm |
| Length tolerance | +1.0/-0.0 mm |
| Chamfer | 45(±10) deg × 0.2(±0.1) mm |
| Flatness | λ/10 @ 633 nm |
| Parallelism | better than 30 arcsec |
| Perpendicularity | better than 15 arcmin |
| Surface finishing | 10/5 scratch/dig |
| Absorption losses | < 0.005 cm-1 |
Description
Nd:KGW crystals are low lasing threshold highly efficient laser material exceptionally suitable for laser rangefinding applications. The efficiency of Nd:KGW lasers is 3–5 times higher than that of Nd:YAG lasers. Nd:KGW laser medium is one of the best choices ensuring effective laser generation at low pump energies (0.5–1 J). These crystals feature high optical quality and great value of bulk resistance to laser radiation. Existing technology produces single crystals of up to 3 kg, thus allowing reliable and high yield fabrication of round elements of up to 12 mm in diameter and up to 120 mm in length.